Collapsible form for arches and sewers.



- ITO-859,478.

PATENTED JULY 9,1907.

w. J. BEIGHLE. GOLLAPSIBLE FORM FORAROHES AND SBWERS.

APPLICATION FILED JAN. 2. 1907.

2 SHEETS-SHEET l.

Q/Vitiwoau 4 PATBNTED JULY 9, 1-907.

, w. J; BEIGHLE. GOLLAPSIBLE FORM FOR ARGHES AND SEWERS.

APPLICATION FILED JAILZ. 1907- 1X21 11 wow WILLIAM J. BEIGHLE OF BINGHAM COLLAPSIBLE FORM F03 ARCI-IES AND snwnns.

1 CANYON, UIAll, ASSIGNOR s. MACK, on BING-HAM CANYON,

S'peeificationof Letters Patent.

Parana onnrcn.

oF ONE-HALF To WALTER IPatented July 9, 1907.

Application filed January2,1907. Serial No. 350,454.

7'0 all whom it may concern. Be it known that I, WILLIAM J. BEIG HLE, a citizen of the United States, residing at Bingharn Canyon, in the .county oiSalt Lake and State ofUtahjhave invented certain new and useful Improvements in Collapsible Forms for Arches and Sewers, of which the fololwing is a specification. I

This invention relatesto lorms for construction of -1nasonry such as arches, tunnels, sewers, sub-ways and the like, the form being collapsible and adjustable and of such organization as to be rbpeatedly used thereby materially reducing the cost of construction both with vresp ectto time and material. l

For a lull description of the invention and thernerits thereof and also to acquire a knowledge of the details of construction and the means for effecting the result, reference is to be had-to the followingdescript ionand accompanying drawings. While the invention may be adapted to different 2( forn1s and conditions, by changes in the structureahd minor details without departing from the spirit or esseilfl tial features thereof, still the preferred embodiment is shown in the accompanying drawings, in which Figure 1 is an end view of a form embodying the in- 1 'vention. Fig. 2 is a perspective View showing the braces and stays folded, Fig. 3 is an end view of. the

p form reduced in size. Fig. 4 is a perspective view'of a brace, Fig. 5 is a'detail perspective view ofa stay, showing the sections partly folded, "Fig; 6 is a vertical 3O central longitudinal section of the form.- l v *Corresponding'and like parts are referred to in the 'following description an'd'indicated in all the views of the drawings b'y'the same reference characters.

The-fo rmcomprises radial braces 1 and diametrical I '35 braces 2, the latter being similar in construction to the radial braces, only being stouter so as to resist the extra strain to which theyare subjected. Each brace I has a longitudinal slot 3 through which the fastening 4 passes, said fastening consisting either of a boltor a rod.

40 Stays are interposed, between the outer ends of adjacent :braces, each stay consisting of similar bars, or members 5, which are pivotally connected at their inner ends-by a suitable fastening 6. Openings 7 are formed in the bars, or members, of the stay adjacent to their pivotal connection 6 to receive. fastenings by means ofwhich wooden segments are connected to said stays;

. Aslot 9 is formed in the outer end of each bar, .or member,5 and receives the iastening'lOv by means of which adjacent stays are connected to one another and to the brace. -The slots 9 admitof a limited adjustment of I the stays and braces; whereby the circumference of the form may be increased, or diminished, within certain limits as may be required.

The braces and stays consist of metal bars of suitable construction according to the d for which the form'is devised.

The wooden segments. 8 are approximately oi 'uniformlsize, the arc of each depending upon the circumwork to be t-timed or shaped about the form; The end portions of the segments overlap, the overlapped ends l y d ill thework. v 7

P pp t from the foregoing that the form may ficiently toadinit of removal of the form, the same may be collapsed and moved to a new position, or may be reduced toa compact form and laid aside forluture use.

To collapse the frame, it-is only necessary to remove the wooden segments, when the stays may be folded inward and the several braces be readily understood.

To materially reduce the size of the form','-one or more stays may be omitted and the braces correspondof standard size according to the outline of the work'in hand, the frame being 'ments within, certainlimits.

as-new is:

' stays stays being composed of sections.

v tion of radial braces and stays between the outer ends of connected parts. 4

3. In a form for masonry, or llke work, the combinaotber and with said braces.

braces adjustable radially and stays connecting the outer ends of said braces.

5. in a form for masonry, 'or like work, comprising radial braces and-stays connecting the outer ends of the esign and special work being firmly connected to each other and to convenient be readily set upand alter the work has hardened suflolded together as will ingly moved inward so as toshort'en their radii. It is, to be understood thatthe woodensegments are to be readily adjustable to said seg- Having thus described the invention. what is claimed 2. In a form for masonry, or like work, the c0rnblna- 4. A frame for masonry, or like woi'lr, comprising radlal 100 ference of the circle or curvature of the arch, or other concrete, masonry, or the like,

1. A form for masonry comprising radial bracesnnd v between the outer-ends of the braces, each otsald the braces,'-each of said stays being hornposcd ofplvotally tibi'l of radial braces and stays between the outer ends of the braces and having adjustable connection with one unbraces, wooden scginenis having their end portions overlapped and connected to one another and to the braces and siays. Y 4

6 A fraine'for masonry, or like work, comprising radial braces having, longitndinnl slots in their inner ends, stays connecting the outer ends of the braces, each stay consist ing of pivoted members, the outer ends of the members having longitudinal slots means connecting the inner ends of the stays to one another and to the braces and wooden segments having their ends; over lapped and con- 10 neeted to one another andjo the pints of the frame.

In testimony whereof I a of two witnesses.

(fig: my signature in presence 

